Lock casing



Jan. 19', 1926.

K. A. BRAUNING LOCK CASING Filed July 29, 1924 A gwmmto@ sa, HMM-Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

KARL A. BRAUNING, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE 6cTO\VNE MANUFACTURING- COMPANY, OF STAMFORD, CONNECTICUT.

LOCK CASING.

Application filed July 29,

To @ZZ 'whom it may concern.'

Bc it known that I, KARL A. BRAUNING, a subject of the Queen of theNetherlands, and residing at Stamford, in the county of Fairield andState of Connecticut, have invented certain new and useful Improvementsin Iiock Casings; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame. n

This invention relates to improvements in lock casings,-one object ofthe invention bcing to provide simple and eicient means` for removablysecuring the cover plate ol the casing in place.

lVith this and other objects in view, the invention consists in certainnovel features of construction and combination of parts as hereinafterset forth and pointed out in the claims.

In the accompanying drawings,-

Figure l is a face view showing the cover plate locked to the casingproper.

Figure 2 is a similar view showing the cover plate unlocked, and

Figure 3 is a sectional view.

The main portion of the casing is shown at 1 and the cover plate at 2.One end wall of the casing is provided with a groove 3 into which oneend of the cover plate enters and at its other end, said cover platerests upon a shoulder 4 of the opposite end wall of the casing.

An intermediate portion of the cover plate is formed with a depressionwhereby a seat 5 is provided for the flanged portion 6 of a key plug 7.

The portion 8 of the cover' plate is preferably in a different planefrom that of the portion 9 and to the portion 8 of said cover plate, alocking lever l0 is pivotally attached. The free end of this lockinglever is provided with a tongue 11 (preferably slightly curved) and thistongue enters an arcuate notch or groove l2 in the adjacent end wall ofthe casing to lock the cover plate in place. In order to hold thelocking lever against displacement when in 1924. Serial No. 728,916.

locking position, said lever is formed with a recess 13 into which aprotuberance 14; on the cover plate enters.

In order that there shall be no interference to ready access for a keyto be inserted into the key plug, the locking lever is provided with ahole l5 which becomes disposed over the key plug when the lever is inlocking position and in order that the lever may have a hole ofsuflicient size, that portion of the lever in which the hole isformed,is preferably somewhat enlarged.

I-Iaving fully described my invention what I claim as new and desire tosecure by Letters-Patent, is :v

l. The combination with the body portion of a lock casing having a coverplate receiving portion at one end and a groove and a seat at the otherend, of a cover plate adapted at one end to engage said receivingportion at one end of the casing and rest upon the shoulder at the otherend of the latter, said cover plate having a seat to receive a lockpart, and a lever pivoted at one end and adapted to extend past saidlast-mentioned seat and having an opening normally over the'latter, thefree end of the pivoted lever adapted to enter the groove in one end ofthe casing.

2. The combination wit-h the body portion of a lock casing having agroove in one end wall and a notch in the other end wall, said lastmentioned end wall also having a shoulder, of a cover plate adapted atone end to enter the groove in one end wall andto rest at its other endagainst the shoulder of the other end wall, said cover plate having adepressed. seat for a key plug, and a locking lever pivoted to the coverplate and having a hole to be disposed over the key plug seat when saidlocking lever is in locked position, the free end of said locking leveradapted to engage in the notch in the adjacent end wall of the casing.

In testimony whereof, I have signed this specification.

KARL A. BRAUNING.

